For the following exercises, given each function f , evaluate f ( − 1 ) , f ( 0 ) , f ( 2 ) , and f ( 4 ) . 50. f ( x ) = { x 2 − 2 if x < 2 4 + | x − 5 | if x ≥ 2
For the following exercises, given each function f , evaluate f ( − 1 ) , f ( 0 ) , f ( 2 ) , and f ( 4 ) . 50. f ( x ) = { x 2 − 2 if x < 2 4 + | x − 5 | if x ≥ 2
For the following exercises, given each functionf, evaluate
f
(
−
1
)
,
f
(
0
)
,
f
(
2
)
,
and
f
(
4
)
.
50.
f
(
x
)
=
{
x
2
−
2
if
x
<
2
4
+
|
x
−
5
|
if
x
≥
2
Expression, rule, or law that gives the relationship between an independent variable and dependent variable. Some important types of functions are injective function, surjective function, polynomial function, and inverse function.
7. From a point 20 m away on a level ground, the angle of elevation to the bottom of a
the top of the window is 32°. Calculate the
window is 27° and the angle of elevatim
height of the window.
(3 marks)
32
SOUCAHTOA
Rom
Coso-Adj
opponite
1270
H
X
Hyp
Tant=OPP
Adj
20 #
Zom
Adjacent
CoS2E 20 XHX Tanz 20
20
K
-0.0445503261 -1.764201788
0-044550326 60044550320
(1 mark) 3960
8. All odd numbers from 1 to 10 are arranged in descending order to form a number.
(i) Write the number.
35798.
97531
31
(ii) Write the total value of the second digit of the number formed in (a) (i)
FA 7X1000-7000
이
(1 mark)
9. A cylinder has a diameter of 28 cm and the height is 18 cm. Calculate its volume.
2
22 × 14 × 14 × 18
-110880m
3
(3 marks)
10. The figure below shows a right pyramid with AB = 3 cm, BC = 5 cm, and AV
VC = VD = 4 cm. Draw its net.
V
3+
12
7/18
(2/20
2105
SSS
20
Find the exact values of sin(2u), cos(2u), and tan(2u) given
2
COS u
where д < u < π.
2
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